net.snowflake.common.core

Class SFInstant

java.lang.Object

net.snowflake.common.core.SFInstant

Direct Known Subclasses:

SFDate, SFTime, SFTimestamp

public abstract class SFInstant
extends Object

Simple interface for uniform accessing of moments in time.

Author:

mzukowski

Field Summary

Fields

Modifier and Type	Field and Description
static int	DAY_OF_WEEK_ISO
protected static TimeZone	GMT
protected static int[]	POWERS_OF_TEN
static int	WEEK_ISO
static int	YEAR_OF_WEEK
static int	YEAR_OF_WEEK_ISO

Constructor Summary

Constructors

Constructor and Description
SFInstant()

Method Summary

Modifier and Type	Method and Description
int	extract(int field) Extract a particular component of a date.
abstract int	extract(int field, Integer optWeekStart, Integer optWoyPolicy)
protected int	extract(int field, TimeZone tz, long time, Integer optWeekStart, Integer optWoyPolicy) Generic function children use to implement public extract.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DAY_OF_WEEK_ISO

public static final int DAY_OF_WEEK_ISO

See Also:

Constant Field Values

WEEK_ISO

public static final int WEEK_ISO

See Also:

Constant Field Values

YEAR_OF_WEEK

public static final int YEAR_OF_WEEK

See Also:

Constant Field Values

YEAR_OF_WEEK_ISO

public static final int YEAR_OF_WEEK_ISO

See Also:

Constant Field Values

GMT

protected static final TimeZone GMT

POWERS_OF_TEN

protected static final int[] POWERS_OF_TEN

Constructor Detail

SFInstant

public SFInstant()

Method Detail

extract

public abstract int extract(int field,
                            Integer optWeekStart,
                            Integer optWoyPolicy)

extract

public int extract(int field)

Extract a particular component of a date.

Parameters:

field - field id as specified in the Calendar class.

Returns:

The value of the extracted field.

extract

protected int extract(int field,
                      TimeZone tz,
                      long time,
                      Integer optWeekStart,
                      Integer optWoyPolicy)

Generic function children use to implement public extract.

Parameters:

field - Field id as specified in the Calendar class. We also support additional components defined in SFInstant

tz - TimeZone to use

time - Moment in time to extract from

optWeekStart - Optional WEEK_START value

optWoyPolicy - Optional WEEK_OF_YEAR_POLICY value

Returns:

The value of the extracted field.